/*
 * Copyright 2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.api.internal.provider;

import org.gradle.api.execution.TaskExecutionGraphListener;
import org.gradle.internal.event.ListenerManager;

public class DefaultConfigurationTimeBarrier implements ConfigurationTimeBarrier {

    private volatile boolean atConfigurationTime = true;

    public DefaultConfigurationTimeBarrier(ListenerManager listenerManager) {
        listenerManager.addListener((TaskExecutionGraphListener) graph -> {
            if (!atConfigurationTime) {
                throw new IllegalStateException();
            }
            atConfigurationTime = false;
        });
    }

    @Override
    public boolean isAtConfigurationTime() {
        return atConfigurationTime;
    }
}
